8Channel RS232 TTL232 IO Control Switch Board Com DB9 Serial Port for Momentary Sel... (VOLTAGE: 5V)

SELECTED OPTION:
VOLTAGE: 5V

Descriptions: Operating Voltage : DC 5V(5V Version) / DC 6-24V(12V Version) Operating Current : 10-15MA Two serial ports: RS232 DB9 interface, TTL 232 interface 8 Output control pins, 5V TTL level, low level (default) / high level output ''Open'' ''Close'' ''Momentary'' ''Self-locking'' ''Interlock'' ''Delay''(Only AT command) ''All Relays Open'' ''All Relays Close'' 8 Commands Two kinds of commands: AT command and 8-byte command, the two commands are automatically recognized, no need to switch. Under the ''Delay'' command ,the maximum delay is 9999 seconds(Only AT command) Size: 54 x 31 x17mm Application: Automated industry PLC Relay Module Smart Home,Home Automation ; Identification system; Motor FW & BW; CCTV Camera PTZ Control; Security system; LED dot matrix screen; RS232 remote control. Package Incldued: 1 x 8Channel RS232 TTL232 IO Control Switch Relay Board